12993585827 has 4 divisors (see below), whose sum is σ = 13065373776. Its totient is φ = 12921797880.

The previous prime is 12993585797. The next prime is 12993585833. The reversal of 12993585827 is 72858539921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72858539921 = 79 ⋅922259999.

It is a cyclic number.

It is not a de Polignac number, because 12993585827 - 2²² = 12989391523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12993585887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35893703 + ... + 35894064.

It is an arithmetic number, because the mean of its divisors is an integer number (3266343444).

Almost surely, 2^12993585827 is an apocalyptic number.

12993585827 is a deficient number, since it is larger than the sum of its proper divisors (71787949).

12993585827 is an equidigital number, since it uses as much as digits as its factorization.

12993585827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71787948.

The product of its digits is 10886400, while the sum is 59.

The spelling of 12993585827 in words is "twelve billion, nine hundred ninety-three million, five hundred eighty-five thousand, eight hundred twenty-seven".